You are the network administrator for Corpnet.com. The Corpnet.com forest has three Active Directory domains: corpnet.com, sales.corpnet.com, and development.corpnet.com. Corpnet.com has a relationship with a vendor named Partner.com. The Partner.com forest has two Active Directory domains: partner.com and support.partner.com. There is currently a cross-forest trust configured between the two forests.

Partner.com has just added a new child domain named operations.partner.com. You need to ensure that users in the new child domain will be able to access resources in all of the domains in the Corpnet.com forest. Users in all of the domains in the Corpnet.com forest will also need to access resources in the operations.partner.com domain. What should you do?

a. Disable SID Filtering on the existing cross-forest trust.
b. Change the existing cross-forest trust to use Forest-Wide authentication.
c. Modify the name suffix routing list on the existing cross-forest trust.
d. Create an external trust between the forest root domain in the Corpnet.com forest and the operations.partner.com domain.

To allow for cross-domain resource access between the new domain and existing domains, the name suffix routing list should be modified in the cross-forest trust. This will enable authentication and allow access between the domains.

Explanation:

In order to allow the users in the new child domain (operations.partner.com) to access resources in all the domains in the Corpnet.com forest and vice versa, you need to

modify the name suffix routing list

on the existing cross-forest trust (Option C). The name suffix routing list defines the name suffixes (often representing the DNS names of the Active Directory domains and application partitions) that the trust can authenticate. By adding the new domain to this list, you are enabling authentication and thus, allowing for the necessary access between domain resources.

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